Message-ID: <57309999.4050302@ivt.baug.ethz.ch>
Date: 2016-05-09T14:07:21Z
From: Kirill Müller
Subject: Regression in match() in R 3.3.0 when matching strings with different character encodings
Hi
I think the following behavior is a regression from R 3.2.5:
> match(iconv( c("\u00f8", "A"), from = "UTF8", to = "latin1" ),
"\u00f8")
[1] 1 NA
> match(iconv( c("\u00f8"), from = "UTF8", to = "latin1" ), "\u00f8")
[1] NA
> match(iconv( c("\u00f8"), from = "UTF8", to = "latin1" ), "\u00f8",
incomparables = NA)
[1] 1
I'm seeing this in R 3.3.0 on both Windows and Ubuntu 15.10.
The specific behavior makes me think this is related to the following
NEWS entry:
match(x, table) is faster (sometimes by an order of magnitude) when x is
of length one and incomparables is unchanged (PR#16491).
Best regards
Kirill